Airtac GFR Filter Regulator GFR400C10C1WK
The AirTAC GFR Filter Regulator GFR400C10C1WK is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR400C10C1WK
The AirTAC GFR series combines a water-and-particulate filter and a pressure regulator in one body. This GFR400C10C1WK is a 400-size unit with a PT3/8 port, a differential-pressure drain that bleeds condensate as airflow passes through, a 5 um fine filter element (the W option, instead of the 40 um standard), a round pressure gauge reading in MPa and a fitted reverse (check) valve that helps hold downstream pressure if the upstream supply dips. It is a filter regulator only - there is no lubricator in this body. It runs on compressed air at up to 1.0 MPa (145 psi) inlet, adjusts outlet pressure from 0.15 to 0.9 MPa (20-130 psi), and works from -5 to 70 C (non-freezing). The 400 size uses a polycarbonate bowl.
This is a genuine AirTAC part. The G series is offered in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, and this configuration can be ordered instead with a G (BSPP) or NPT thread, an automatic or manual drain, the standard 40 um element, an embedded square gauge, or without the check valve. AirTAC publishes flow as characteristic curves rather than a single rating, so ask us to confirm sizing and request the datasheet for your application.
Airtac GFR Filter Regulator GFR400C10C1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10C1WK |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: Airtac GFR Filter Regulator GFR400C10C1WK
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR400C10C1WK Is Used
Safety-related pneumatic control branch
Supplying the control-air branch of a press or guarding circuit where stable downstream pressure matters: the regulator holds the set point, the check valve helps the circuit ride through upstream dips, and the 5 um element protects the control valves.
Fleet workshop air drops for brake-test rigs
Feeding commercial-vehicle brake-test and air-system check rigs in a truck workshop, where the regulator sets test pressure, the check valve guards against backflow from the rig, and the fine element keeps test air clean.
Pilot-air supply for large process actuators
Conditioning the pilot-air branch that positions positioners and pilot solenoids on large process actuators, with one regulated 3/8 inch point per skid and protection against reverse flow between branches.
Is the Airtac GFR Filter Regulator GFR400C10C1WK the Right Unit?
This code bundles two options: the 5 um fine element (W) and a fitted reverse (check) valve (K). Pick it when the circuit needs both finer particulate protection and a barrier against backflow; order GFR400C10C1W without the check function, or GFR400C10C1 for the standard 40 um element and no check valve. The 400 size with its 3/8 inch port sits in the middle of the G range - step to 300 or 600 as your port and volume requirements dictate, and verify the step against the flow curves. The differential-pressure drain suits continuously flowing lines; the A-coded automatic drain covers intermittent duty and the M-coded manual drain allows hand bleeding plus a wider 0.05-0.9 MPa (7-130 psi) regulating range. PT is the standard thread with G (BSPP) and NPT as catalogue options, a bracket is included, and the MPa round gauge can be ordered as an embedded square gauge instead. AirTAC publishes flow as curves, not a single rated figure, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR400C10C1WK FAQ
Yes - on request. AirTAC publishes flow for the GFR series as characteristic curves rather than a single rated number, so we do not quote one figure as a rating. Send your supply pressure, set pressure and air consumption and we will confirm sizing against the curves and provide the datasheet.
Both carry the 5 um fine filter element, MPa round gauge and differential-pressure drain. The K in this code additionally means a reverse (check) valve is fitted, blocking backflow from the downstream side. If your circuit does not need that barrier, order GFR400C10C1W instead.
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